

<%@ page language="java"  import="java.util.*,yy.*" pageEncoding="UTF-8"%>

  
    <%
   		Student _s= (Student)session.getAttribute("use");
   		
   		if(_s==null){
   		out.print("<script> alert('您还没有登录,请先登录');location.replace('Zuoye1/Login.jsp');</script>");
   		return;
   		}
   	 %>
     <h3>欢迎<%=_s.getSname() %> &nbsp; <a href="Zuoye1/Logout.jsp" style="color: blue;">退出 </a></h3>

